Home / 98,867.87-148,722.75-89,619.56

Finding the Fourth Proportional to 98,867.87, 148,722.75 and 89,619.56

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Solution

The fourth proportional to 98,867.87, 148,722.75 and 89,619.56 is: 134,810.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,867.87 : 148,722.75 = 89,619.56 : x
  2. Step 2: Convert to fraction form
    98,867.87/148,722.75 = 89,619.56/x
  3. Step 3: Cross multiply
    98,867.87x = 148,722.75 × 89,619.56
  4. Step 4: Simplify right side
    98,867.87x = 13,328,466,673.38
  5. Step 5: Solve for x
    x = 13,328,466,673.38/98,867.87
  6. Step 6: Final answer
    x = 134,810.91

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.